Journal article
The multiple stress creep recovery test for airport asphalt binders
Road and Transport Research, Vol.24(3), pp.24-34
2015
Abstract
Bitumen supplies into Australia have become more diverse as importation of bitumen has become common and Australian refineries have been closed or reduced in their capacity. The products on which empirical links between bitumen properties and field performance were established are likely to have changed over the years. This has undermined the effectiveness of the empirical bitumen specifications used in Australia. Similar experiences in New Zealand and South Africa prompted the introduction of performance-based testing. In the USA, the multiple stress creep recovery (MSCR) test was developed as a high-temperature performance grading criterion. The MSCR test is performed using a dynamic shear rheometer. A number of these devices are already available in Australia. The test is simple and takes about 15 minutes to complete. The MSCR test was adopted by the USA for high temperature performance grading of binders because of its advantages over the traditional G* /sin delta. The MSCR was used to evaluate three samples of multigrade M1000 bitumen retained from a number of airport overlays. The M1000 samples assessed were found to be unsuitable at 76 C but suited to very heavy and extreme traffic loadings at 70 C and 64 C respectively. The MSCR testing of binders is recommended for high shear stress asphalt applications, such as airport surfaces.
Details
- Title
- The multiple stress creep recovery test for airport asphalt binders
- Authors
- Gregory W White (Author) - Fulton Hogan
- Publication details
- Road and Transport Research, Vol.24(3), pp.24-34
- Publisher
- A R R B Group Ltd.
- Date published
- 2015
- ISSN
- 1037-5783
- Copyright note
- Copyright © 2015 The Author. Reproduced here with permission of the copyright holder.
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99449434902621
- Output Type
- Journal article
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